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How we calculated this

Read by an AI agent (a large language model) from the utility's official rate schedule, then audited by a second model against the same schedule.

Extracted by: Audit · Claude Opus 5.5 · 10/28/2026
Source: 
Monthly basic charge, 5/8"x3/4" meter: $16.20
Water used: 8.021 ccf, all in Block 1, at $1.80 per ccf = $14.44
Total: $30.64/mo
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Utility profile · WA

CLARK PUBLIC UTILITIES Water Rates

CLARK PUBLIC UTILITIES supplies water to about 150,000 people in Hockinson, Venersborg, and Amboy, Washington. A typical household using 6,000 gallons a month pays an estimated $30.64, 47% below the national average.

Rates effective 2026-01-01

Updated Oct 2026

How much does water cost provided by CLARK PUBLIC UTILITIES?

Monthly Rate

$30.64 / month
Read and audited by AI against the official rate schedule

How the bill adds up

Service charge
5/8” x ¾” or ¾” meter
 $16.20
Water used
802 cf × $1.8/ccf
 $14.44
Total $30.64

How does CLARK PUBLIC UTILITIES's water cost compare to its regional neighbors?

Monthly cost (6k gal) vs up to 10 nearest utilities with published rates. Click to navigate.

CLARK PUBLIC UTILITIES
$30.64
CLARK PUBLIC UTILITIES
VANCOUVER · $30.64/mo
RIDGEFIELD PUBLIC WORKS
$34.96
RIDGEFIELD PUBLIC WORKS
Ridgefield, WA · $34.96/mo · 13mi
TROUTDALE, CITY OF
$35.34
TROUTDALE, CITY OF
TROUTDALE, OR · $35.34/mo · 20mi
KALAMA CITY OF
$37.75
KALAMA CITY OF
KALAMA, WA · $37.75/mo · 22mi
CAMAS MUNICIPAL WATER SEWER SYSTEM
$38.71
CAMAS MUNICIPAL WATER SEWER SYSTEM
Camas, WA · $38.71/mo · 14mi
WOOD VILLAGE, CITY OF
$43.17
WOOD VILLAGE, CITY OF
WOOD VILLAGE, OR · $43.17/mo · 20mi
ROCKWOOD PUD
$47.44
ROCKWOOD PUD
PORTLAND, OR · $47.44/mo · 20mi
FAIRVIEW, CITY OF
$47.96
FAIRVIEW, CITY OF
FAIRVIEW, OR · $47.96/mo · 19mi
WASHOUGAL CITY OF
$51.47
WASHOUGAL CITY OF
Washougal, WA · $51.47/mo · 18mi
ST HELENS, CITY OF
$65.81
ST HELENS, CITY OF
ST HELENS, OR · $65.81/mo · 17mi
WOODLAND CITY OF
$75.06
WOODLAND CITY OF
WOODLAND, WA · $75.06/mo · 15mi

Where does CLARK PUBLIC UTILITIES provide service?

Population served and the municipalities covered by this utility's service area.

Boundaries from the EPA Water System Service Areas dataset. Not all utilities have mapped boundaries.

Population Served

153,526

Municipalities served

Hockinson Venersborg Amboy

Where does CLARK PUBLIC UTILITIES's water come from?

Supply and provider classification from EPA records.

Primary Source
Groundwater
Provider Type
Local Govt
PWSID
WA5313333

Named intake/well source and interconnections (who this utility buys from or sells to) aren't captured yet — tracked separately for a future update.

Is water affordable for CLARK PUBLIC UTILITIES's customers?

Annual bill as a share of median household income in the service area.

Water Burden

0.3% of income (annual)
of median area income · affordability threshold: 2%

We don't yet systematically track whether a utility offers income-based or sliding-scale pricing separate from its standard rates — tracked separately for a future update.

Where did this data come from?

This rate was extracted from CLARK PUBLIC UTILITIES's published tariff document by an AI research agent, then checked against a validation checklist before publishing. See the full methodology for how every utility on this site is sourced and scored.

Provenance

Extracted by: Audit · Claude Opus 5.5 · 10/28/2026
Confidence label: Model verified

Spot an error, or have a newer rate schedule?